Prime & Composite Worksheet
Recommended for 4th Grade — 6th Grade
Prime & Composite Worksheet
Name: ____________________Date: ____________
Instructions: Identifying prime and composite numbers and writing prime factorizations.
20 problems
- Prime numbers in {7, 9, 25, 13, 21, 5} → ______
- Prime numbers in {17, 9, 15, 2, 23, 8} → ______
- Prime numbers in {13, 7, 21, 25, 11, 17} → ______
- Prime numbers in {17, 15, 29, 9, 21, 5} → ______
- Prime numbers in {7, 2, 3, 21, 19, 12} → ______
- Prime numbers in {13, 17, 15, 3, 2, 9} → ______
- Prime numbers in {2, 19, 12, 3, 27, 7} → ______
- Prime numbers in {12, 25, 15, 19, 2, 13} → ______
- Prime numbers in {9, 27, 11, 15, 23, 7} → ______
- Prime numbers in {13, 29, 8, 7, 27, 2} → ______
- Prime numbers in {11, 17, 15, 27, 12, 9} → ______
- Prime numbers in {8, 12, 5, 13, 9, 17} → ______
- Prime numbers in {12, 3, 7, 21, 11, 9} → ______
- Prime numbers in {5, 7, 19, 12, 29, 25} → ______
- Prime numbers in {11, 19, 5, 23, 8, 7} → ______
- Prime numbers in {15, 21, 7, 13, 19, 12} → ______
- Prime numbers in {2, 23, 17, 15, 13, 5} → ______
- Prime numbers in {7, 25, 13, 9, 2, 8} → ______
- Prime numbers in {27, 15, 13, 23, 19, 2} → ______
- Prime numbers in {9, 15, 27, 7, 17, 12} → ______